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1、BRITISH STANDARD BS ISO 12000: 1996 Plastics/rubber Polymer dispersions and rubber latices (natural and synthetic) Definitions and review of test methods ICS 83.060 Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 27 07:29:27 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS ISO 12000:1996 This Briti
2、sh Standard, having been prepared under the direction of the Sector Board for Materials and Chemicals, was published under the authority of the Standards Board and comes into effect on 15 March 1997 BSI 12-1998 ISBN 0 580 27212 5 National foreword This British Standard reproduces verbatim ISO 12000:
3、1996 and implements it as the UK national standard. The UK participation in its preparation was entrusted to Technical Committee PRI/21, Testing of plastics, which has the responsibility to: aid enquirers to understand the text; present to the responsible international/European committee any enquiri
4、es on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. A list of organizations represented on this committee can be obtained on request. Cross-references The British Standards which
5、 implement international or European publications referred to in this document may be found in the BSI Standards Catalogue under the section entitled “International Standards Correspondence Index”, or using the “Find” facility of the BSI Standards Electronic Catalogue. A British Standard does not pu
6、rport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front
7、 cover, pages i and ii, the ISO title page, pages ii to iv, pages 1 to 4 and a back cover. This standard has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside front cover. Amendments issued since publication Amd. N
8、o.DateComments Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 27 07:29:27 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS ISO 12000:1996 BSI 12-1998i Contents Page National forewordInside front cover Forewordiii Text of ISO 120001 Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 27 07:29:27 GM
9、T+00:00 2006, Uncontrolled Copy, (c) BSI ii blank Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 27 07:29:27 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 27 07:29:27 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS ISO 12000:1996 ii BSI 12-1998 Con
10、tents Page 1Scope1 2Normative references1 3Definitions2 3.1Dispersion2 3.2Polymer dispersion (dispersion of natural or synthetic homopolymer and copolymer)2 3.3Latex2 4Sampling2 5Conditioning2 6Test methods2 7Precision of the test methods used4 8Test report4 Table 1 Test methods developed by ISO/TC
11、453 Table 2 Test methods developed by ISO/TC 614 Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 27 07:29:27 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS ISO 12000:1996 BSI 12-1998iii Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standar
12、ds bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organi
13、zations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. Draft International Standards adopted by the technical committees are cir
14、culated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. International Standard ISO 12000 was prepared by Technical Committee ISO/TC 61, Plastics, Subcommittee SC 9, Thermoplastic materials, in close col
15、laboration with ISO/TC 45, Rubber and rubber products. It represents a first step towards the aim of harmonizing parallel standards in the two technical committees mentioned above. Descriptors: Plastics, polymers, rubber, latex, aqueous dispersions, definitions, tests, determination, properties, sur
16、veys. Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 27 07:29:27 GMT+00:00 2006, Uncontrolled Copy, (c) BSI iv blank Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 27 07:29:27 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS ISO 12000:1996 BSI 12-19981 1 Scope This International Standard give
17、s definitions relative to polymer dispersions and latices and identifies the test methods applicable for determining the properties of aqueous and non-aqueous polymer dispersions, comprising products of synthetic or natural origin including synthetic and natural rubber latices. Some of the test meth
18、ods apply only to polymer dispersions or latices of specific chemical composition or to those to be used for specific applications. NOTE 1Where they are not the subject of an existing International Standard, the test methods to be used for investigation of an individual polymer dispersion or latex w
19、ill have to be the subject of agreement between the interested parties. 2 Normative references The following standards contain provisions which, through reference in this text, constitute provisions of this International Standard. At the time of publication, the editions indicated were valid. All st
20、andards are subject to revision, and parties to agreements based on this International Standard are encouraged to investigate the possibility of applying the most recent editions of the standards listed below. Members of IEC and ISO maintain registers of currently valid International Standards. ISO
21、35:1995, Latex rubber, natural, concentrate Determination of mechanical stability. ISO 123:1985, Rubber latex Sampling. ISO 124:1), Latex, rubber Determination of total solids content. ISO 125:1990, Natural rubber latex concentrate Determination of alkalinity. ISO 126:1995, Latex, rubber, natural co
22、ncentrate Determination of dry rubber content. ISO 127:1995, Rubber, natural latex concentrate Determination of KOH number. ISO 291:2), Plastics Standard atmospheres for conditioning and testing. ISO 471:1995, Rubber Temperatures, humidities and times for conditioning and testing. ISO 472:1988, Plas
23、tics Vocabulary. ISO 506:1992, Rubber latex, natural, concentrate Determination of volatile fatty acid number. ISO 705:1994, Rubber latex Determination of density between 5 C and 40 C. ISO 706:1985, Rubber latex Determination of coagulum content (sieve residue). ISO 976:1996, Rubber and plastics Pol
24、ymer dispersions and rubber latices Determination of pH. ISO 1147:1995, Plastics/rubber Polymer dispersions and synthetic rubber latices Freeze-thaw cycle stability test. ISO 1409:1995, Plastics/rubber Polymer dispersions and rubber latices (natural and synthetic) Determination of surface tension by
25、 the ring method. ISO 1625:3), Plastics Polymer dispersions Determination of non-volatile matter (residue) at specified temperatures. ISO 1652:1985, Rubber latex Determination of viscosity. ISO 1656:1996, Rubber, raw natural, and rubber latex, natural Determination of nitrogen content. ISO 1657:1986
26、, Rubber, raw and rubber latex Determination of iron content 1,10-Phenanthroline photometric method. ISO 1802:1992, Natural rubber latex concentrate Determination of boric acid content. ISO 2005:1992, Rubber latex, natural, concentrate Determination of sludge content. ISO 2006:1985, Rubber latex, sy
27、nthetic Determination of high-speed mechanical stability. ISO 2008:1987, Rubber latex, styrene-butadiene Determination of volatile unsaturates. ISO 2115:1996, Plastics/rubber Polymer dispersions and rubber latices Determination of white point temperature and minimum film-forming temperature. ISO 255
28、5:1989, Plastics Resins in the liquid state or as emulsions or dispersions Determination of apparent viscosity by the Brookfield Test method. ISO 3136:1983, Rubber latex Styrene-butadiene Determination of bound styrene content. ISO 3219:1993, Plastics Polymers/resins in the liquid state or as emulsi
29、ons or dispersions Determination of viscosity using a rotational viscometer with defined shear rate. ISO 3499:1976, Plastics Aqueous dispersions of homopolymers and copolymers of vinyl acetate Determination of bromine number. ISO 3899:1988, Rubber Nitrile latex Determination of residual acrylonitril
30、e content. ISO 3900:1995, Rubber Nitrile latex Determination of bound acrylonitrile content. 1) To be published. (Revision of ISO 124:1992) 2) To be published. (Revision of ISO 291:1977) 3) To be published. (Revision of ISO 1625:1977) Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 27 07:29:27 G
31、MT+00:00 2006, Uncontrolled Copy, (c) BSI BS ISO 12000:1996 2 BSI 12-1998 ISO 4576:1996, Plastics Polymer dispersions Determination of sieve residue (gross particle and coagulum content). ISO 4655:1985, Rubber Reinforced styrene-butadiene latex Determination of total bound styrene content. ISO 7780:
32、4), Rubbers and rubber latices Determination of manganese content Sodium periodate photometric methods. ISO 8053:1995, Rubber and latex Determination of copper content Photometric method. ISO 8962:1987, Plastics Polymer dispersions Determination of density. NOTE 2Where individual standards overlap,
33、it is intended that they will be harmonized by the Technical Committees responsible for them, ISO/TC 45 and ISO/TC 61. 3 Definitions For the purposes of this International Standard, the following definitions apply. 3.1 dispersion a heterogeneous system in which a finely divided material is distribut
34、ed in another material (definition taken from ISO 472) 3.2 polymer dispersion (dispersion of natural or synthetic homopolymer and copolymer) a liquid to semi-liquid material, usually milky-white, containing the polymeric material in a stable condition finely dispersed in a continuous liquid phase, n
35、ormally water (aqueous dispersion) or an organic liquid (non-aqueous dispersion or NAD) 3.3 latex the traditional designation for a colloidal aqueous dispersion of natural or synthetic rubber polymer. Frequently, “latex” is also used as a synonym for polymer dispersions in general NOTE 3Polymer disp
36、ersions and latices are often further explained by adding the designation of the base polymer by name or by abbreviation, for instance polyacrylate dispersion, SBR latex. 4 Sampling Sampling shall be carried out in accordance with ISO 123 (rubber latex). Representative samples of aqueous and non-aqu
37、eous polymer dispersions and of latices are a prerequisite for reliable and reproducible results from the test methods. Therefore the material to be tested must be uniform. 5 Conditioning The conditioning and testing atmosphere shall comply with the specified test method or referring standard, as ap
38、plicable. If there are no such requirements, then samples shall be conditioned and tests carried out in one of the standard atmospheres specified in either ISO 291 for polymer dispersions or ISO 471 for latices, as appropriate. 6 Test methods Test methods shall be selected from those given in Table
39、1 for rubber latices, and those in Table 2 for polymer dispersions, as appropriate. 4) To be published. (Revision of ISO 7780:1987) Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 27 07:29:27 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS ISO 12000:1996 BSI 12-19983 Table 1 Test methods developed
40、 by ISO/TC 45 PropertyUnitsTest methodComments Physical and physico-chemical properties Mechanical stabilitysISO 35Natural rubber latex only Total solids content% m/mISO 124 Alkalinityg/100 g of latexISO 125Natural rubber latex only Dry rubber content% (m/m)ISO 126Natural rubber latex only Density M
41、g/m3 ISO 705Natural rubber latex only Coagulum content (sieve residue)% (m/m)ISO 706 pHpH-unitsISO 976 Surface tensionmN/mISO 1409 ViscositymPasISO 1652Apparent viscosity Sludge content% (m/m)ISO 2005Natural rubber latex only High-speed mechanical stability% (m/m)ISO 2006Synthetic rubber latex only
42、Volatile unsaturates% (m/m)ISO 2008Styrene-butadiene latex Chemical properties KOH numberISO 127Natural rubber latex only Volatile fatty acid numberISO 506Natural rubber latex only Nitrogen content% (m/m)ISO 1656Natural rubber latex only Iron content (1,10-phenanthroline photometric method) ppm (m/m
43、)ISO 1657 Boric acid content% (m/m)ISO 1802Natural rubber latex only Bound styrene content% (m/m)ISO 3136Styrene-butadiene latex Residual acrylonitrile content% (m/m)ISO 3899Nitrile latex Bound acrylonitrile content% (m/m)ISO 3900Nitrile latex Total bound styrene content% (m/m)ISO 4655Reinforced sty
44、rene-butadiene latex Manganese content (sodium periodate photometric method) mg/kgISO 7780 Copper content (photometric method)mg/kgISO 8053 Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 27 07:29:27 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS ISO 12000:1996 4 BSI 12-1998 Table 2 Test methods
45、developed by ISO/TC 61 7 Precision of the test methods used Details of the precision of the test method used shall be given in a “Precision” clause. If the experimental data on which the stated precision is based are included in the standard, this may be placed in an informative annex. The precision
46、 shall be expressed as a percentage of the results in terms of the following: a) repeatability; b) reproducibility. 8 Test report The results of the individual tests performed on a polymer dispersion/latex shall be recorded in a test report. This shall comply with the requirements of the particular
47、International Standard in question, but shall include at least the following information: a) a reference to the International Standard used for the test; b) all details necessary to identify completely the product and sample tested; c) the results of the test and the conditions of testing; d) any de
48、viations from the procedure specified; e) any unusual incident noted during the test; f) the date and place of the test. PropertyUnitsTest methodComments Physical and physico-chemical properties pHpH-unitsISO 1148 Residue at 105 C% (m/m)ISO 1625 Apparent viscosity by Brookfield method (general proce
49、dure) PasISO 2555 Viscosity using rotational viscometer at defined shear rate PasISO 3219 Gross particle content by sieve analysis % (m/m)ISO 4576Residue on sieve(s) substantially larger than average particle size Density g/cm3 ISO 8962Using pyknometer or hydrometer, depending on precision required Chemical properties Bromine numberg/100 gISO 3499Measures residual unsaturation directly applicable only to poly(vinyl acetate) dispersions General Free